20 terms

S8P3 Review Force

GPS S8P3
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Terms in this set (...)

First Law
An object in motion stays in motion, an object at rest stays at rest, unless acted on by an outside force.
Second Law
F = ma
Third Law
Every action has an equal and opposite reaction.
Weight
The effect of gravity on an object's mass.
Mass
The amount of matter in an object.
Rolling Friction
The frictional force that opposes a rolling object.
Momentum
How hard it is to stop a moving object.
Velocity
The speed of an object in a particular direction.
Acceleration
The rate of change of velocity.
Force
A push or pull.
Balanced Forces
Forces on an object that are equal in size and opposite in direction.
Unbalanced Forces
When forces combine to produce a net force that is not zero, the forces acting on the object are this.
Inertia
The tendency of an object to resist any change in its motion.
Friction
The force that opposes motion between two surfaces that are touching.
Static Friction
The frictional force that prevents two surfaces in contact from moving past each other.
Sliding Friction
The force that acts in the opposite direction to the motion of a surface sliding on another surface.
Air Resistance
Opposes the motion of objects that move through the air.
Law of Conservation of Momentum
law that states: the total moment of a system before and after a collision does not change
gravity
attractive force that exists between objects with mass
work
Force exerted on an object that causes it to move.